I don't know this is from kh, kh2 or kh3
i spent 4hrs on this and came out with 2 versions, pls comment. (i prefer the 2nd one :) )
http://img297.imageshack.us/img297/9182/new3copy.jpg
http://img168.imageshack.us/img168/9199/new4copy.jpg
and.... i am out of idea what to do with the space on the left. i feel like leaving it blank will be better.

Final work, pls commend:

Well, not bad for the beginning.

Some things you should improve are:

The quality of the scan of Roxas. It looks grainy and blurry and also the extraction could be a bit better. The outlines are jaggy.

The smaller pics are a bit overfiltered and look grainy and blurry now. I also think that the lightening effect you used on them is a bit to light. You should tone it down a bit.

Yeah it's not bad for the beginning! ^_^
And i was thinking to make that scan! but ok..you made it good than mine!

angel-voice

The quality of the scan of Roxas. It looks grainy and blurry and also the extraction could be a bit better. The outlines are jaggy.

i agree with ^angel-voice about the extraction of roxas! and its a bit blurry and jiggy! but i can help to fix it!

make step by step like i do now to let your scan be high quality! and not low like yours.

1)first copy your original scan from >> Layer >> Duplicate Layer >> and click OK.
2)Filter >> Noise >> Median >> choose Redius 5% pixels and click OK!
3) you'll find your original scan too blurry but play with it in >> Layers >> overlay.
4)your scan will be good quality.

i hope i helped a little , and if you've question let me know about it.

I finish the editing:

yup i noticed those grainy and blurry. thanks sashinka for the tips! it give a very nice effect on the rest of the pic too. i still do additional touch up with blur tool. i also improved the 3 photos
i made the heart shaped moon smaller a bit and remove the text. i think it will be better to place the text as shadows on the moon.

sashinka you wanna do a wall on this scan? if you do i can give you the render.